MIME（Multipurpose Internet Mail Extension）為「網際網路技術特別調查委員會」提倡的E-Mail傳送規格，目前成為Web伺服器和UserAgent之間資料傳輸的通訊規格。主要的MIME形態有以下幾種:
- text/html
- HTML(HyperText Markup Language) File
- text/xml
- XML(eXtensible Markup Language) File
- application/xml
- XML File
- application/xhtml+xml
- XHTML(eXtensible HyperText Markup Language) File
- text/css
- CSS(Cascading Style Sheets) File
- application/
x-shockwave-flash - Flash Shockwave File
- text/javascript
- javascript File
- text/plain
- Text File
- image/gif
- GIF(Graphics Interchange Format) image File
- image/jpeg
- JPEG(Joint Photographic Experts Group) image File
- image/png
- PNG(Portable Network Graphics) image File
- audio/midi
- MIDI(Musical Instruments Digital Interface) Sound FIle
- video/mpeg
- MPEG(Moving Picture Experts Group) Video FIle
- video/x-msvideo
- Microsoft AVI(Audio Video Interleaving) File
- application/pdf
- Adobe PDF(Portable Document Format) File
- application/java
- JAVA Applet File
- application/rss+xml
- RSS(Rich Site Summary) Formate
- MIME是由「tepe/subtype」所構成，type和subtype之間以(/)區隔，1種type可有複數個subtype。
- MIMIE所對應的附加檔案名，在httpd.conf的檔案內設定。Apache則是在.htaccess的檔案內設定。